Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

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basic_socket::open (2 of 2 overloads)

Open the socket using the specified protocol.

void open(
    const protocol_type & protocol,
    boost::system::error_code & ec);

This function opens the socket so that it will use the specified protocol.

Parameters

protocol

An object specifying which protocol is to be used.

ec

Set to indicate what error occurred, if any.

Example
boost::asio::ip::tcp::socket socket(my_context);
boost::system::error_code ec;
socket.open(boost::asio::ip::tcp::v4(), ec);
if (ec)
{
  // An error occurred.
}

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